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o3de/Gems/LyShine/Code/Source/UiLayoutManager.h

43 lines
1.4 KiB
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project.
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#pragma once
#include <LyShine/Bus/UiLayoutManagerBus.h>
////////////////////////////////////////////////////////////////////////////////////////////////////
class UiLayoutManager
: public UiLayoutManagerBus::Handler
{
public: // member functions
UiLayoutManager(AZ::EntityId canvasEntityId);
~UiLayoutManager();
// UiLayoutManagerBus interface implementation
void MarkToRecomputeLayout(AZ::EntityId entityId) override;
void MarkToRecomputeLayoutsAffectedByLayoutCellChange(AZ::EntityId entityId, bool isDefaultLayoutCell) override;
void UnmarkAllLayouts() override;
void RecomputeMarkedLayouts() override;
void ComputeLayoutForElementAndDescendants(AZ::EntityId entityId) override;
// ~UiLayoutManagerBus
bool HasMarkedLayouts() const { return !m_elementsToRecomputeLayout.empty(); }
private: // member functions
AZ_DISABLE_COPY_MOVE(UiLayoutManager);
void AddToRecomputeLayoutList(AZ::EntityId entityId);
bool IsParentOfElement(AZ::EntityId checkParentEntity, AZ::EntityId checkChildEntity);
private: // data
//! Elements that need to recompute their layouts. Parents should be ahead of their children
AZStd::list<AZ::EntityId> m_elementsToRecomputeLayout;
};